Hammer



Patented duly l, l924t.,

ROBERT O. BOYKIN, OF R'OGUE RIVER, OREGON.

HAMMER.

Application filed July 23, 1923. Seii'al No. 653,294.

To all whom t may concern.'

Be it known that I, ROBERT O. BO'YKIN, a citizen of the United States, residing at Rogue River, in the county of Josephine and State of Oregon, have invented a new and useful Hammer, of which the following is a specification.

My new hammer is especiallyadapted and designed for use around rock Crushers and overcomes the difficulty heretofore experienced due to a hammer accidentally getting between the jaws of a power rock crusher and causing serious damage. The objects of my invention are to provide a hammer that will serve all of the useful purposes common to a tool of this character and possess characteristics that will prevent it entering between the jaws of a rock crusher to the damage of the machine.

I accomplish the purposes enumerated by the construction shown in the accompanying drawing, in which Fig. I shows a partially sectionalized side view of my new hammer and Fig. II is an Orthographie projection of Fig. I, the sectioned part being shown in full. A. double faced hammer, 3, is provided with an eye, 3, and adapted to receive the handle; 5, a substantially spherical ball of resilient material, preferably rubber, 4, is moulded in a unit piece around the hammer, 3, in such a manner that the two faces of the hammer, 3a and 3b, project slightly beyond the spherical surface of the ball, 4. An eye, 7, is formed in the said ball of resilient material so that it will be coincident with the eye in the hammer, 3, permitting the insertion and secure attachment of the handle, 5.

Means other than the handle are desirable for preventing the ball, 4, from driving off the hammer, 3, which may be bands shrunk onto the hammer as illustrated at 6 and 6, or irregularities of outline in the Construction of the hammer may serve the same purpose, or pins may be inserted in the hammer prior to the moulding of the ball, 4, to secure the same result. i

A single faced hammer havingy its one face projecting beyond the spherical surface of the ball, 4, may likewise be constructed and used without departing from the principle of my invention. It is not necessary that the resilient material be truly spherical in shape to accomplish the purposes of my invention as any mass of rubber or similar material that approximates a spherical shape and surrounds the body of the hammer and is securely attached thereto will serve the same purpose as a true sphere and for this reason I have in claim six of the claims appended hereto referred to the resilient material surrounding the body of the hammer as a mass instead of a ball as in the other claims.

In use, the diameter of the ball is such that it will at most enter but a short way between the jaws of a rock crusher and ithas been found by experiment that it cannot be forced deep enough between the said jaws to cause them to come in contact with the body of the hammer. rdinarily the jaws of a rock crusher will attempt to grip my new hammer at apoint below its greatest diameter when the resiliency of the ball, 4, will cause it to fly out from between the i jaws with some force. Except in the very largest of rock Crushers, the jaws do not open far enough to grasp the hammer endwise and as accidents of the character above referred to are usually caused by the breaking of a handle while striking a rock that is a little too large to go into the crusher, there is small chance of the hammer assuming a position that would permit an endwise grip.4

Having thus fully disclosed my invention in a manner that will permit anyone skilled in the art to which it appertains to make and use the same, what I claim as new and desire t-o secure by Letters Patent, is,

l. In a hammer, an eye for said hammer, a handle for said eye, a striking face on said hammer, a spherical mass of resilient material surrounding the body of said hammer and securely retained in place and leaving said striking face exposed.

2. A. hammer of the character described, and having two striking faces; a spherical mass of rubber having a diameter less than the distance between the two striking faces, and surrounding the body of the said hammer and securely attached thereto; means for attaching a handle to said hammer whereby the said hammer may be wielded by said handle; the said striking faces bein exposed beyond the body of the sai spherical mass of rubber, for the purpose specified.

3. A hammer of the character described,and having two striking faces; a spherical mass of resilient material having a diameter less than the distance between the two striking faces and surrounding the body of the said hammer and securely attached thereto;

means for attaching a handle to said hammer whereby the said hammer may be Wielded by said handle; the said striking faces being exposed beyond the body of the said spherical mass of resilient material; for the purpose specified.

4:. Ina hammer of the character described, a spherical mass of resilient material surrounding the body of said hammer, an eye in said hammer adapted to receive a handle; an eye in said mass of resilient material coincident With the eye in said hammer; striking faces on said hammer projecting through the spherical surface of the said mass of resilient material whereby a handle may be attached to said hammer through said mass of resilient material and the said striking faces may be used in the usual manner.

5. In a hammer having a plurality of striking faces, means integral with the body of said hammer to permit the secure attachment of a ball of resilient material, a ball of resilient material attached to and surrounding the body of said hammer and leaving' the said striking faces of said ham mer exposed; a handle for said hammer secured in an eye in the body of said. hammer and passing also through an opening in the said ball of resilient material that registers with the said eye; for the purpose specified. 6. In a hammer of the character described a metal hammer having an eye and a plurality of striking faces, a mass of resilient material surrounding the body of said hammer and leaving the said striking faces exposed; means for attaching the said mass of resilient material securely to the body of said hammer, for the purpose specified.

ROBERT O. BOYKIN. 

